Recurvidris

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Recurvidris
Recurvidris browni
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Crematogastrini
Genus: Recurvidris
Bolton, 1992
Type species
Not required
Diversity
12 species
(Species Checklist)

Recurvidris browni casent0178521 profile 1.jpg

Recurvidris browni

Recurvidris browni casent0178521 dorsal 1.jpg

Specimen Label

Synonyms
Evolutionary Relationships

Rostromyrmex






Cardiocondyla



Ocymyrmex






Nesomyrmex



Xenomyrmex





Terataner




Atopomyrmex



Cataulacus










Carebara



Diplomorium






Melissotarsus



Rhopalomastix






Calyptomyrmex



Tetramorium





Cyphoidris



Dicroaspis










Aretidris



Vollenhovia





Dacetinops



Indomyrma








Crematogaster



Meranoplus






Lophomyrmex




Adlerzia



Recurvidris






Stereomyrmex




Trichomyrmex





Eutetramorium




Royidris




Malagidris



Vitsika








Huberia



Podomyrma





Liomyrmex



Metapone













Kartidris



Mayriella





Tetheamyrma




Dacatria



Proatta









Dilobocondyla



Secostruma






Acanthomyrmex



Myrmecina





Perissomyrmex



Pristomyrmex









some Lordomyrma



Propodilobus





Lasiomyrma




[some Lordomyrma




Ancyridris



some Lordomyrma









Paratopula




Poecilomyrma




Romblonella



Rotastruma








Gauromyrmex



Vombisidris





Temnothorax




Harpagoxenus



Formicoxenus



Leptothorax













Based on Ward et al. (2014) and Blaimer et al. (2018).

Vietnamese Recurvidris species inhabit forest edges and woody habitats, but rarely grasslands. They nest in the soil and build a chimney-shaped mound on the nest entrance with soil particles. (Eguchi, Bui and Yamane 2011)

Identification

Eguchi, Bui and Yamane (2011) - The worker of Recurvidris is somewhat similar to that of Crematogaster (Orthocrema) species.

Jaitrong and Wiwatwitaya (2015) - Worker diagnosis: for a more extensive description of the worker caste of the genus, see Bolton (1992). Some of the important characteristics described by Bolton (1992) are reproduced here. Clypeus broad from front to back; antenna 11-segmented, with a conspicuous apical club of three segments; mandible with 4-5 teeth on masticatory margin; palp formula 4, 3; frontal carinae and antennal scrobes absent; propodeal spine present, curving upwards and forwards from its base; petiole pedunculate, with spiracle at about midlength of the peduncle, and node low and weakly conical in profile; first gastral segment in profile almost flat dorsally and strongly convex ventrally, with tergite strongly overlapping sternite laterally.

Keys including this Genus

 

Keys to Species in this Genus

Distribution

Distribution and Richness based on AntMaps

Biology

Castes

Morphology

Karyotype

Species Uncertain

  • 2n = 24, karyotype = 18M+6A (India) (Imai et al., 1984) (as Trigonogaster sp.).

All Karyotype Records for Genus

Explore Karyotype Data: All, Drilldown
Taxon Haploid Diploid Karyotype Locality Source Notes
Recurvidris 24 18M+6A India Imai et al., 1984 as ''Trigonogaster'' sp.

Nomenclature

The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.

  • RECURVIDRIS [Myrmicinae: Crematogastrini]
    • Recurvidris Bolton, 1992: 36. Replacement name for Trigonogaster Forel, 1890b: cviii. [Junior homonym of Trigonogaster Guérin-Méneville, 1844b: 1149 (Hymenoptera, Pteromalidae).]
  • TRIGONOGASTER [junior homonym; see Recurvidris]
    • Trigonogaster Forel, 1890b: cviii. Type-species: Trigonogaster recurvispinosa, by monotypy. [Junior homonym of Trigonogaster Guérin-Méneville, 1844b: 1149 (Hymenoptera, Pteromalidae).]
    • Recurvidris Bolton, 1992: 36, replacement name for Trigonogaster Forel.

Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.

Eguchi, Bui and Yamane (2011) - Workers of Vietnamese species have the following features.Worker monomorphic; head in full-face view oval or subrectangular; frontal carina and antennal scrobe absent; median portion of clypeus in lateral view relatively steeply sloping anteriad; anterior clypeal margin lacking an isolated median seta; posteromedian portion of clypeus relatively broadly inserted between frontal lobes; mandible relatively narrow; masticatory margin oblique, with 4–5 teeth; antennae 11-segmented, with distinct 3-segmented club; eye well developed, weakly pointed anteroventrally; mesosoma long; promesonotal dome raised above anterodorsal border of propodeum, with a long posterior slope to propodeum; promesonotal suture absent dorsally; metanotal groove weakly impressed dorsally; propodeal spine curving upwards and forwards from base; propodeal spiracle located close to dorsal face of propodeum, far in front of base of propodeal spine; propodeal lobe vestigial; petiole pedunculate, with a tiny to large, triangular subpetiolar process; petiolar node low and weakly conical in lateral view; postpetiole in lateral view dorsoventrally narrowed posteriorly, in dorsal view broadly attached to first gastral segment; first gastral segment behind postpetiole in lateral view extremely dorsoventrally compressed; gastral shoulder absent.

References